Google API has documents on implementing OAuth 2.0. However I am quite confused at how your supposed to obtain the access token. The documentation says that I must send a POST request in the following format
POST /o/oauth2/token HTTP/1.1
Host: accounts.google.com
Content-Type: application/x-www-form-urlencoded
code=4/v6xr77ewYqhvHSyW6UJ1w7jKwAzu&
client_id=8819981768.apps.googleusercontent.com&
client_secret={client_secret}&
redirect_uri=https://oauth2-login-demo.appspot.com/code&
grant_type=authorization_code
Thing is I have no idea what this is saying. Does it mean I have to send a post command like this.
HttpClient httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("Host", "accounts.google.com");
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage tokenResponse = await httpClient.PostAsync(new Uri("https://accounts.google.com/o/oauth2/token"), new StringContent(requiredParams));
Where Required params is that giant string. Any tips?
[Update]
Error I get using the above implementation
- tokenResponse {StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
Pragma: no-cache
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Transfer-Encoding: chunked
Cache-Control: no-store, must-revalidate, no-cache, max-age=0
Date: Fri, 01 Feb 2013 17:05:59 GMT
Server: GSE
Content-Type: application/json
Expires: Fri, 01 Jan 1990 00:00:00 GMT
}} System.Net.Http.HttpResponseMessage
